两个微米大小的黑暗维度

IF 7.8 3区物理与天体物理 Q1 PHYSICS, MULTIDISCIPLINARY

Fortschritte Der Physik-Progress of Physics Pub Date : 2025-07-17 DOI:10.1002/prop.70015

Luis A. Anchordoqui, Ignatios Antoniadis, Dieter Lüst

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引用次数: 0

摘要

两个微米尺度的额外维度可能同时解决规范和宇宙学层次问题。本文研究了具有一个和两个大额外维度的情况下的各种观测界限，看看它们是否与微米尺度相容。作者表明，与天体物理观测的一致性要求两个微米尺度的额外维度必须不允许等距离，从而违反了额外维度动量守恒，从而允许重子的大质量kaluzza - klein模式衰变为其他较轻的重子模式。然而，为了与宇宙学观测保持一致，两个额外的微米尺度需要对宇宙进入辐射主导时代的温度进行精细的微调。深入研究这个精细的场景，作者还表明，质量在10 8 × M BH / g × 10 21的原始黑洞$10^8 \lesssim M_{\rm BH}/{\rm g} \lesssim 10^{21}$可以产生所有的宇宙暗物质。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Two Micron-Size Dark Dimensions

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Two Micron-Size Dark Dimensions

Two extra dimensions of micron scale might simultaneously address the gauge and cosmological hierarchy problems. In this paper various observational bounds in scenarios with one and two large extra dimensions are examined, to see if they are compatible with the micron scale. The authors show that consistency with astrophysical observations requires that two extra dimensions of micron scale must not admit isometries, whereby conservation of the extra dimensional momentum is violated, allowing the massive Kaluza–Klein modes of the graviton to decay to other lighter graviton modes. However, to remain consistent with cosmological observations two extra dimensions of micron scale require a delicately fine tuning of the temperature at which the universe enters the radiation dominated epoch. Diving into this fine-tuned scenario the authors also show that primordial black holes with masses in the range $10^{8} ≲ M_{BH} / g ≲ 10^{21}$ could make all cosmological dark matter.

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来源期刊

Fortschritte Der Physik-Progress of Physics 物理-物理：综合

CiteScore

6.70

自引率

7.70%

发文量

审稿时长

6-12 weeks

期刊介绍： The journal Fortschritte der Physik - Progress of Physics is a pure online Journal (since 2013). Fortschritte der Physik - Progress of Physics is devoted to the theoretical and experimental studies of fundamental constituents of matter and their interactions e. g. elementary particle physics, classical and quantum field theory, the theory of gravitation and cosmology, quantum information, thermodynamics and statistics, laser physics and nonlinear dynamics, including chaos and quantum chaos. Generally the papers are review articles with a detailed survey on relevant publications, but original papers of general interest are also published.